Next Stop is the universal story of how children grow up and parents learn to let go--no matter how difficult it may be for both of them. ? The summer David Finland was twenty-one, he and his mother rode the Washington, D.C., metro trains. Every day. The goal was that if David could learn the train lines, maybe David could get a job. And then maybe he could move out on his own. And then maybe his parents' marriage could get the jump-start it craved...